The best car dehumidifiers tested 2025

Cheap, simple, and easy to 'recharge', the A300 model by Pingi is perhaps all the dehumidifier that you'll ever need to provide your car with a clear, dry windscreen in the morning. We've tested this one out and found it to be incredibly capable and in our test, lasted for about a week and a half before the pink indicator began to show.

To recharge it, you simply put it in the microwave for six minutes and then it's good to go again. It's compact enough to easily in your door bins when on the move, and at under £10 each, they're great value for money as well.

Above all, the simplicity and ease of use of this dehumidifier - alongside the outstanding capability of it - crowns it as our most recommended model on the marketplace.

Review by Aaron Hussain

We've tested the mighty 1KG dehumidifier as well as the best-selling A300 model, and we've learned one major thing. While 'recharging' this larger bag takes a lot more effort (it requires an oven), the amount of moisture it absorbs before getting full is unbelievable compared to its smaller sibling.

I left it on the dashboard repeatedly for three weeks so far, and no charge indicator has shown up yet. The A300 began to show its pink sign after about a week and a half, whereas its bigger brother kept on absorbing.

We don't really like the fact you need a lot of electrical energy to evaporate the moisture out of it. However, for the immense capabilities this bag has, we'd say it's worth the extra cash over the A300 - especially if the inside of your vehicle gets really damp from time to time.

Review by Aaron Hussain

Our top-rated car dehumidifiers are these silica-filled bags. They're the best option because these 1kg bags can absorb up to 400ml of water each. Therefore, you can have them in a vehicle for a long time before 'recharging', and they can be used in large vehicles too, including campervans.

There are many silica-filled bags on the market but we rate these ones not only because the volume can soak up but also because they bear two handy features. One is the blue dot. When the bag has absorbed all it can, the dot goes blue. You then 'recharge' it (about once a month in the microwave) and the dot goes pink. The second helpful feature is the inclusion of non-slip pads that you can use to stop the bags from sliding off a dashboard.

One of the more oddball dehumidifiers available are these bamboo charcoal bags, which, unlike the others, require no home energy to 'recharge' - making them more eco-friendly and energy-saving. What you simply do is place them in direct sunlight for up to a couple of hours every month and they'll be good to go again.

As well as the car, these bags can be used for pairs of shoes, gym bags and more according to the manufacturer, and have little holes so they can be hung up. You should really think of them more as air fresheners rather than dehumidifiers, but the principle of the charcoal bags are quite similar.

Gadlane's dehumidifier bags are the same size, filled with the same silica gel, and capable of absorbing the same volume of water as the Hillington bags.

However, they don't come with a moisture indicator or non-slip pads. Nevertheless, they still do a brilliant job of absorbing moisture. To 'recharge', simply put them on a radiator, in the microwave, or just air them out. Another big let-down is the lack of a charge indicator, so you have to guess when you need to 'recharge' them.

The dehumidifier bags are your best option. But if you want a device, there are a couple of options, the best of which is this. This compact cordless dehumidifier can inhale one litre of water then automatically cut off once full.

It even has a defrost function, making it the perfect choice for cars left in cold garages overnight. It might be expensive, but this unit is compact, easy to use and very effective.

Another great option on the smaller end of the spectrum comes in the form of these 350g dehumidifier bags from Northampton-based firm, UK4BC. There is a recharge indicator in the middle of the bags which turn from blue to pink when you need to recharge them.

Each one can hold up to 150ml of water, and UK4BC say they're suitable for a number of applications from the cabin of your car to garden furniture storage and even your kitchen windows.

One other option for ensuring fresh, clean air in your car is to attack different areas of your car's cabin with some air freshener. Autoglym is only too happy to provide.

Designed to be applied in small doses on carpets and fabric trim, Autoglym's Odour Eliminator effectively kills bad odours that occur throughout your interior. Whether the source is from pets, food, or drinks, this will make your vehicle a pleasant thing to climb into again.

STP's angle to the bad odour/humidifier problem is rather more technical than the other options. Instead of leaving a bag of dehumidifier on your dashboard or spraying some aerosol, you place the Air-Con Cleaner on the floor of your car, turn on the A.C, press the bottle and let the product find its way into the air conditioning vents and clean it out from there.

According to the brand, it only takes ten minutes to do a full clean out, and after the bottle is empty, you simply open all windows and allow the interior to breathe. It helps clear out bacteria or other nasties in your air conditioning system and means your car is hygienically safe when you need a dash of hot or cold air.